Fire-fighting pipeline air tightness detection device

Abstract

The utility model belongs to fire safety technical field especially, it is fire pipeline air tightness detection device, it includes detection base, the top of detection base places air tightness detector, a plurality of gas tanks and fire pipeline, the top of detection base is equipped with sliding slot, the inside of sliding slot is equipped with two linkage sliding blocks, one side of two linkage sliding blocks is fixedly installed and has the plugging head, two plugging heads and same fire pipeline contact one side is fixedly installed and has the plugging shell, the inside of two plugging shells is equipped with plugging chamber, the inside of two plugging chambers is equipped with plugging mechanism. The utility model can control two plugging heads to carry out the plugging of fire pipeline, through the plugging mechanism that sets up, can improve the connecting speed of plugging head and fire pipeline, greatly improved the detection efficiency, the lip seal strip that sets up simultaneously can strengthen air tightness, prevents the situation that appears detection gas leak, increases the accuracy and quickness of detection.

Description

Technical Field

[0001] This utility model relates to the field of fire safety technology, and in particular to a fire pipeline airtightness testing device. Background Technology

[0002] Fire safety technology covers multiple aspects such as fire prevention, fire detection, fire protection facility design and maintenance, and emergency rescue. Among fire safety technologies, preventive testing of fire protection facilities is necessary. For example, airtightness testing can be used to detect potential defects in piping systems in advance (such as loose joints, pipe cracks, etc.), which is a key technical means in the fire prevention process.

[0003] When conducting airtightness testing on fire protection pipelines, both ends of the pipelines need to be sealed, and then gas is injected through equipment. However, existing equipment often uses flange connections and multiple bolts to connect the pipelines when sealing them, which is inefficient and cannot perform continuous testing, greatly affecting the testing efficiency.

[0004] Therefore, we propose a fire-fighting pipeline airtightness testing device to solve the above problems. Utility Model Content

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A fire-fighting pipeline air tightness testing device includes a testing base. An air tightness tester, multiple gas cylinders, and a fire-fighting pipeline are placed on the top of the testing base. A sliding groove is formed on the top of the testing base, and two linkage sliders are slidably installed on the inner side of the sliding groove. A sealing head is fixedly installed on one side of each linkage slider. A sealing shell is fixedly installed on the side of each sealing head that contacts the same fire-fighting pipeline. A sealing chamber is formed inside each of the two sealing shells, and a sealing mechanism is provided on the inner side of each of the two sealing chambers.

[0007] Specifically, the top of multiple gas cylinders is fixedly equipped with the same gas collection pipe, one end of which is detachably connected to an airtightness tester.

[0008] Specifically, a detection pipe is detachably installed on one side of the airtightness tester, and the other end of the detection pipe is fixedly inserted through a sealing head located on the left side. The end of the detection pipe that passes through the sealing head on the left side extends into the inside of the fire-fighting pipeline, so as to facilitate the input of detection gas into the fire-fighting pipeline.

[0009] Specifically, a positive and negative toothed ball screw is rotatably installed on one side of the inner wall of the sliding groove, and the two linkage sliders are threaded onto the same positive and negative toothed ball screw, which facilitates rotation through the positive and negative toothed ball screw.

[0010] Specifically, the detection base has a motor slot inside, and a servo motor is fixedly installed on one inner wall of the motor slot. The output shaft of the servo motor is fixedly connected to the forward and reverse toothed ball screw, so that the servo motor can drive the forward and reverse toothed ball screw to rotate.

[0011] Specifically, the sealing mechanism includes a linkage disc, six linkage columns, and six sealing plates. The linkage disc is rotatably mounted on one inner wall of the sealing chamber. Six linkage holes are opened on one side of the linkage disc, and linkage columns are slidably installed on the inner side of each of the six linkage holes. Six guide ports are opened on one side of the sealing shell, and the six linkage columns are slidably installed in their respective guide ports. A sealing plate is fixedly installed at one end of each of the six linkage columns, and a lip-shaped sealing strip is fixedly installed on one side of each of the six sealing plates. The six lip-shaped sealing strips are in contact with the inner wall of the fire-fighting pipe, effectively enhancing the airtightness.

[0012] Specifically, the sealing head has two drive slots inside, and a synchronous motor is fixedly installed on the inner side of each drive slot. Two drive gears are rotatably installed on one inner wall of the sealing chamber. The output shafts of the two synchronous motors are fixedly connected to the corresponding drive gears, so that the drive gears can be driven to rotate by the synchronous motors.

[0013] Specifically, a driven gear ring is fixedly sleeved on the outer side of the linkage disk, and both driving gears mesh with the same driven gear ring, which can drive the driven gear ring to rotate through the linkage driving gear.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: it can control two sealing heads to seal the fire pipeline. Through the sealing mechanism, the connection speed between the sealing head and the fire pipeline can be improved, which greatly improves the detection efficiency. At the same time, the lip-shaped sealing strip can enhance the airtightness and prevent gas from leaking through both ends of the fire pipeline during the detection process, thereby increasing the accuracy and speed of the detection. Attached Figure Description

[0015] Figure 1 This is a front view of a three-dimensional structure of a fire pipeline airtightness testing device proposed in this utility model;

[0016] Figure 2 This is a side view of a three-dimensional structure of a fire pipeline airtightness testing device proposed in this utility model;

[0017] Figure 3 This is a three-dimensional back view of the fire pipeline airtightness testing device proposed in this utility model;

[0018] Figure 4This is a three-dimensional cross-sectional view of two sealing heads and a fire pipeline, which is a fire pipeline airtightness testing device proposed in this utility model.

[0019] Figure 5 This is a three-dimensional structural diagram of the sealing mechanism of a fire pipeline airtightness testing device proposed in this utility model;

[0020] Figure 6 This is a three-dimensional structural breakdown diagram of the sealing mechanism of a fire pipeline airtightness testing device proposed in this utility model.

[0021] In the diagram: 1. Testing base; 2. Air tightness tester; 3. Gas tank; 4. Gas collection pipeline; 5. Testing pipeline; 6. Fire protection pipeline; 7. Sealing head; 8. Linkage slider; 9. Positive and negative toothed ball screw; 10. Servo motor; 11. Sealing shell; 12. Guide port; 13. Drive gear; 14. Synchronous motor; 15. Driven gear ring; 16. Linkage disc; 17. Linkage column; 18. Sealing plate; 19. Lip sealing strip. Detailed Implementation

[0022] Reference Figure 1-6 A fire-fighting pipeline air tightness testing device includes a testing base 1. An air tightness tester 2, multiple gas cylinders 3, and a fire-fighting pipeline 6 are placed on the top of the testing base 1. A sliding groove is provided on the top of the testing base 1, and two linkage sliders 8 are slidably installed on the inner side of the sliding groove. A sealing head 7 is fixedly installed on one side of each of the two linkage sliders 8. A sealing shell 11 is fixedly installed on the side of each of the two sealing heads 7 that contacts the same fire-fighting pipeline 6. A sealing chamber is provided inside each of the two sealing shells 11, and a sealing mechanism is provided on the inner side of each of the two sealing chambers.

[0023] In this embodiment, the top of each of the multiple gas tanks 3 is fixedly installed with the same gas collection pipe 4, and one end of the gas collection pipe 4 is detachably connected to the airtightness tester 2.

[0024] In this embodiment, a detection pipe 5 is detachably installed on one side of the airtightness detector 2. The other end of the detection pipe 5 is fixedly inserted through the sealing head 7 located on the left side. The end of the detection pipe 5 that passes through the sealing head 7 on the left side extends into the inside of the fire-fighting pipe 6, so as to facilitate the input of detection gas into the fire-fighting pipe 6.

[0025] In this embodiment, a positive and negative tooth ball screw 9 is rotatably installed on one side of the inner wall of the sliding groove, and the two linkage sliders 8 are threaded on the same positive and negative tooth ball screw 9, which facilitates rotation by the positive and negative tooth ball screw 9.

[0026] In this embodiment, a motor slot is provided inside the detection base 1, and a servo motor 10 is fixedly installed on one inner wall of the motor slot. The output shaft of the servo motor 10 is fixedly connected to the forward and reverse tooth ball screw 9, so that the servo motor 10 can drive the forward and reverse tooth ball screw 9 to rotate.

[0027] In this embodiment, the sealing mechanism includes a linkage disc 16, six linkage columns 17, and six sealing plates 18. The linkage disc 16 is rotatably installed on one inner wall of the sealing chamber. Six linkage holes are opened on one side of the linkage disc 16. The linkage columns 17 are slidably installed on the inner side of each of the six linkage holes. Six guide ports 12 are opened on one side of the sealing shell 11. The six linkage columns 17 are slidably installed in the corresponding guide ports 12. A sealing plate 18 is fixedly installed at one end of each of the six linkage columns 17. A lip-shaped sealing strip 19 is fixedly installed on one side of each of the six sealing plates 18. The six lip-shaped sealing strips 19 are in contact with the inner wall of the fire-fighting pipe 6, effectively enhancing the airtightness.

[0028] In this embodiment, the sealing head 7 has two drive slots inside, and a synchronous motor 14 is fixedly installed on the inner side of each drive slot. Two drive gears 13 are rotatably installed on one inner wall of the sealing chamber. The output shafts of the two synchronous motors 14 are fixedly connected to the corresponding drive gears 13, so that the drive gears 13 can be driven to rotate by the synchronous motors 14.

[0029] In this embodiment, a driven gear ring 15 is fixedly sleeved on the outer side of the linkage disk 16. Both driving gears 13 mesh with the same driven gear ring 15, and the driven gear ring 15 can be driven to rotate by the linkage driving gear 13.

[0030] Working principle: During the airtightness test, the staff places the fire-fighting pipe 6 on the test base 1, and then starts the servo motor 10. The servo motor 10 drives the forward and reverse threaded ball screw 9 to rotate, which in turn moves the two linked sliders 8. The movement of the two linked sliders 8 causes the corresponding sealing heads 7 to move closer to each other and contact both ends of the fire-fighting pipe 6. The sealing shell 11 on one side of the two sealing heads 7 slides into the fire-fighting pipe 6. Then, the four synchronous motors 14 are started, which drive the corresponding driving gears 13 to rotate. The rotation of the four driving gears 13 drives the corresponding driven gear rings 15 to rotate. The two driven gear rings 15 rotate, driving the corresponding linkage discs 16 to rotate. The rotation of the two linkage discs 16 drives the corresponding multiple linkage holes to rotate. The multiple linkage holes rotate around the center of the corresponding linkage discs 16, thereby driving the corresponding linkage columns 17 to move. The multiple linkage columns 17 are all slidably installed in the corresponding guide ports 12. Therefore, the movement trajectory of the multiple linkage columns 17 is restricted, and they can only move along the corresponding guide ports 12. The movement of the multiple linkage columns 17 drives the corresponding sealing plate 18 to move, thereby driving the multiple lip-shaped sealing strips 19 to contact the inner wall of the fire pipe 6. While providing internal support connection, it also enhances the sealing performance. The staff opens the multiple gas cylinders 3, allowing the test gas to enter the air tightness tester 2 through the gas collection pipe 4. Then, the air tightness tester 2 inputs the test gas into the fire pipe 6 through the test pipe 5 for air tightness testing.

[0031] The technological advancements of this invention compared to existing technologies are as follows: it can control two sealing heads 7 to seal the fire-fighting pipeline 6. Through the sealing mechanism, the connection speed between the sealing head 7 and the fire-fighting pipeline 6 can be increased, greatly improving the detection efficiency. At the same time, the lip-shaped sealing strip 19 can enhance airtightness and prevent gas from leaking through both ends of the fire-fighting pipeline 6 during the detection process, increasing the accuracy and speed of the detection.

Claims

1. A fire service pipe air tightness testing device, characterized in that, Includes a testing base (1), on the top of which is placed an air tightness tester (2), multiple gas cylinders (3) and a fire pipe (6). A sliding groove is provided on the top of the testing base (1), and two linkage sliders (8) are slidably installed on the inner side of the sliding groove. A sealing head (7) is fixedly installed on one side of each of the two linkage sliders (8). A sealing shell (11) is fixedly installed on the side of each of the two sealing heads (7) that is in contact with the same fire pipe (6). A sealing chamber is opened inside each of the two sealing shells (11), and a sealing mechanism is provided on the inner side of each of the two sealing chambers.

2. The device for detecting the air tightness of a fire hose according to claim 1, wherein, The top of each of the multiple gas tanks (3) is fixedly installed with the same gas collection pipe (4), one end of which is detachably connected to the air tightness tester (2).

3. The device for detecting the air tightness of a fire hose according to claim 1, wherein The airtightness tester (2) has a test pipe (5) detachably installed on one side. The other end of the test pipe (5) is fixedly inserted through the sealing head (7) located on the left side. The end of the test pipe (5) that passes through the sealing head (7) on the left side extends into the inside of the fire pipe (6).

4. The device for detecting the air tightness of a fire hose according to claim 1, wherein A positive and negative tooth ball screw (9) is rotatably installed on one side of the inner wall of the sliding groove, and two linkage sliders (8) are threaded on the same positive and negative tooth ball screw (9).

5. The fire-fighting pipeline airtightness testing device according to claim 4, characterized in that, The detection base (1) has a motor slot inside, and a servo motor (10) is fixedly installed on one side of the inner wall of the motor slot. The output shaft of the servo motor (10) is fixedly connected to the forward and reverse toothed ball screw (9).

6. The device for detecting the air tightness of a fire hose according to claim 1, wherein The sealing mechanism includes a linkage disc (16), six linkage columns (17) and six sealing plates (18). The linkage disc (16) is rotatably installed on one side of the inner wall of the sealing chamber. Six linkage holes are opened on one side of the linkage disc (16). The linkage columns (17) are slidably installed on the inner side of each of the six linkage holes. Six guide ports (12) are opened on one side of the sealing shell (11). The six linkage columns (17) are slidably installed in the corresponding guide ports (12). A sealing plate (18) is fixedly installed at one end of each of the six linkage columns (17). A lip sealing strip (19) is fixedly installed on one side of each of the six sealing plates (18). The six lip sealing strips (19) are in contact with the inner wall of the fire pipe (6).

7. The device for detecting the air tightness of a fire hose according to claim 6, wherein The sealing head (7) has two drive slots inside, and a synchronous motor (14) is fixedly installed on the inner side of each drive slot. Two drive gears (13) are rotatably installed on one side inner wall of the sealing chamber. The output shafts of the two synchronous motors (14) are fixedly connected to the corresponding drive gears (13).

8. The device for detecting the air tightness of a fire hose according to claim 7, wherein The outer side of the linkage disk (16) is fixedly fitted with a driven gear ring (15), and both driving gears (13) mesh with the same driven gear ring (15).

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